com.geoway.mobile.datasources

类 GDALRasterTileDataSource

java.lang.Object

com.geoway.mobile.datasources.TileDataSource

com.geoway.mobile.datasources.GDALRasterTileDataSource

public class GDALRasterTileDataSource
extends TileDataSource

High-level raster tile data source that supports various GDAL data formats.
For example, GeoTiff files can be used using this data source.

字段概要

从类继承的字段 com.geoway.mobile.datasources.TileDataSource

swigCMemOwn

构造器概要

构造器

构造器和说明
GDALRasterTileDataSource(int minZoom, int maxZoom, java.lang.String fileName) Constructs a new GDAL raster data source.
GDALRasterTileDataSource(int minZoom, int maxZoom, java.lang.String fileName, java.lang.String srs) Constructs a new GDAL raster data source with explicit reference to SRS.
GDALRasterTileDataSource(long cPtr, boolean cMemoryOwn)

方法概要

限定符和类型	方法和说明
void	delete()
protected void	finalize()
static long	getCPtr(GDALRasterTileDataSource obj)
MapBounds	getDataExtent() Returns the extent of this data source.
TileData	loadTile(MapTile mapTile) Loads the specified tile.
static GDALRasterTileDataSource	swigCreatePolymorphicInstance(long cPtr, boolean cMemoryOwn) Creates a polymorphic instance of the given native object.
protected void	swigDirectorDisconnect()
java.lang.String	swigGetClassName() Returns the actual class name of this object.
java.lang.Object	swigGetDirectorObject() Returns the connected director object.
void	swigReleaseOwnership()
void	swigTakeOwnership()

从类继承的方法 com.geoway.mobile.datasources.TileDataSource

getCPtr, getDataBounds, getMaxZoom, getMinZoom, getProjection, getTileSize, isIntervalLevel, notifyTilesChanged, setDataBounds, setIntervalLevel, setTileSize

从类继承的方法 java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

GDALRasterTileDataSource

public GDALRasterTileDataSource(long cPtr,
                                boolean cMemoryOwn)

GDALRasterTileDataSource

public GDALRasterTileDataSource(int minZoom,
                                int maxZoom,
                                java.lang.String fileName)
                         throws java.io.IOException

Constructs a new GDAL raster data source.

参数:

minZoom - The minimum zoom level supported by this data source.

maxZoom - The maximum zoom level supported by this data source.

fileName - The full path of the data file

抛出:

java.lang.Exception - If the file could not be opened.

java.io.IOException

GDALRasterTileDataSource

public GDALRasterTileDataSource(int minZoom,
                                int maxZoom,
                                java.lang.String fileName,
                                java.lang.String srs)
                         throws java.io.IOException

Constructs a new GDAL raster data source with explicit reference to SRS.

参数:

minZoom - The minimum zoom level supported by this data source.

maxZoom - The maximum zoom level supported by this data source.

fileName - The full path of the data file

srs - The spatial reference system of the data ("EPSG:34326", for example)

抛出:

java.lang.Exception - If the file could not be opened.

java.io.IOException

方法详细资料

getCPtr

public static long getCPtr(GDALRasterTileDataSource obj)

finalize

protected void finalize()

覆盖:

finalize 在类中 TileDataSource

delete

public void delete()

覆盖:

delete 在类中 TileDataSource

swigDirectorDisconnect

protected void swigDirectorDisconnect()

覆盖:

swigDirectorDisconnect 在类中 TileDataSource

swigReleaseOwnership

public void swigReleaseOwnership()

覆盖:

swigReleaseOwnership 在类中 TileDataSource

swigTakeOwnership

public void swigTakeOwnership()

覆盖:

swigTakeOwnership 在类中 TileDataSource

swigCreatePolymorphicInstance

public static GDALRasterTileDataSource swigCreatePolymorphicInstance(long cPtr,
                                                                     boolean cMemoryOwn)

Creates a polymorphic instance of the given native object. This is used internally by the SDK.

参数:

cPtr - The native pointer of the instance.

cMemoryOwn - The ownership flag.

返回:

The created instance.

getDataExtent

public MapBounds getDataExtent()

Returns the extent of this data source. Extent is the minimal bounding box encompassing all the raster data.

返回:

The minimal bounding box for the data.

loadTile

public TileData loadTile(MapTile mapTile)

从类复制的说明: TileDataSource

Loads the specified tile.
Note: the tile coordinate system used here is vertically flipped relative to layer tile coordinate system.

覆盖:

loadTile 在类中 TileDataSource

参数:

mapTile - The tile to load.

返回:

The tile data. If the tile is not available, null may be returned.

swigGetClassName

public java.lang.String swigGetClassName()

Returns the actual class name of this object. This is used internally by the SDK.

覆盖:

swigGetClassName 在类中 TileDataSource

返回:

The class name of this object.

swigGetDirectorObject

public java.lang.Object swigGetDirectorObject()

Returns the connected director object. This is used internally by the SDK.

覆盖:

swigGetDirectorObject 在类中 TileDataSource

返回:

The connected director object or null if director is not connected.